Electrolux T4190 Service Manual page 25

Circuit boards MUST be protected
Remember!
• Always use an earthed wrist strap.
• Without the antistatic wrapping, the board is unprotected.
• Keep all items that can cause static discharge (such as plastic bags,
fabric, and the like) away from the circuit board.
• Items like plastic, foam plastic, nylon, or cellophane wrapping are all big
generators of static electricity.
• Static electricity can not be felt, heard or seen till the voltage reaches
2500V.
• Board components can be damaged by static electricity under 100V.
from static electricity!